This is a vexing question. The fact that the miracle of languages at Pentecost has completely ceased with the passing of the Apostles is beyond question. Why then is this prevailing confusion?
The confusion has arisen for this one reason. People try to equate the present day ‘ecstatic’ meaningless gibberish with the miracle languages of Pentecost. These are two entirely different things. The New Testament ‘tongues’ were known, understandable, interpretable languages brought on by the supernatural working of the Holy Ghost. They appeared suddenly, were equally abruptly withdrawn, and never appeared again after the Apostolic era. They come under the category of ‘the signs of an apostle’ (2 Cor. 12:12).
Modern tongues are not languages at all. There are no rules of grammar, or syntax, or vocabulary. They cannot be understood, neither can they be interpreted. They are not exclusive to Christianity, being commonly found in heathen and idolatrous tongues-speaking groups. They are certainly not the work of the Holy Spirit.
Now, we come back to the question: have tongues ceased?